A car moving with a speed of 20m/s has a momentum of 32,000 kg. m/s.
What is the mass of the car

The y-component of the vector is 13.24 m.

Vector components allow us to break a single vector quantity into two or more scalar quantities with which we have more mathematical experience.

The two component of a vector include;

The component of a vector that acts in horizontal direction is known as x-component of the vector.

The component of a vector that acts in vertical direction is known as y-component of the vector.

The y-component of the vector is calculated as follows;

Vy = V sinθ

Vy = 55.1 m x sin(13.9)

Vy = 13.24 m

Thus, the y-component of the vector is 13.24 m.

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The complete question is below:

a vector is 55.1 m long pointing in a 13.9 degree angle. Find the y-component of the vector.

gravity created a solar nebula when 99% of the gas and dust materials were gathered into the center of a flattened disc during the formation of the solar system

The explosion of a flattened disc created waves in space that compressed the cloud of gas and dust.  The cloud is all gravitationally bounded together.  

As the cloud continued to fall inward, the center eventually became so hot that it became a star, the Sun, and blew away most of the new solar system's gas and dust with a powerful stellar wind.

This squeeze caused the cloud to begin collapsing as gravity pulled the gas and dust together to form the solar nebula.

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The minimum angle at which the box starts to slip is  20.30°, the acceleration once the box has begun to move is 1.10 m/s2 and final velocity of the box is 3.41 m/s^2.

Given:

Mass of the box m = 25.2 kg

Acceleration due to gravity g = 9.8 m/s^2

Coefficient of kinetic friction between the ramp and box  μk=0.25

Coefficient of static friction μs = 0.37

Part(A)

By inctreasing, parallel component of the weight will also increase but the force will decrease.

Let say θ be the angle of repose.

Now we know that

Ff= μs × mg × cosθ = mg × sinθ = Wp

Then we will get

θ = tan−1(μs)

θ = tan-1 (0.37) = 20.30 °

Part(B)

As the box starts sliding the frictional force becomes kinetic friction

The kinetic frictional force

F(k) = μ(k) x mg x cos(20.30)

= 0.25 × 25.2 × 9.8 × cos (20.30)

= 57.91 N

Now calculate the parallel component of the weight

W(p) = mg x sinθ

W(p) = 25.2 x 9.8 x cos (20.30)

= 85.68 N

Now calculate net force

F(net) = W(p) − F(k) = 85.68 − 57.91 = 27.77 N

Acceleration of the box

a = Fn/m = 27.77/25.2 = 1.10 m/s2

Part(C)

The box has moved a distance s = 5.3 m

The final speed of the box = v

Now

v = √ 2as

v = √ 2 x 1.10 x 5.3

v = 3.41 m/s^2

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The complete question is

A 25. 0 kg box of textbooks rests on a loading ramp that makes an angle α with the horizontal. The coefficient of kinetic friction is 0. 250, and the coefficient of static friction is 0. 350. Part A) As the angle θ is increased, find the minimum angle at which the box starts to slip. Express your answer using two significant figures. Part B) At this angle, find the acceleration once the box has begun to move. Express your answer using two significant figures. Part C) At this angle, how fast will the box be moving after it has slid a distance 5.3 m along the loading ramp? Express your answer using two significant figures.

You walk in a given direction for 20 m during the first 5 seconds, your average speed is equal to 5m/s

Average speed is determined by dividing the total distance you travelled by the total time, whereas average velocity is determined by dividing your displacement (a vector pointing from your initial position to your end position) by the whole time.

The amount of something that happens or changes in a unit of time is expressed as a rate.

The equation for speed is that Divide the distance an object travels by the time it takes to cover that distance to determine its speed. A unit of distance is divided by a unit of time in the speed equation.

Then Average speed = total distance / total time

= 20 + 15 / 5 + 2

= 35/7

= 5 m/s

The average speed is calculated as 5m/s

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The answer is hang glider.

In high school, I created a project for a similar experiment that was accepted.

It matters what you carry the egg in because it is an egg, so something cushioned.

Use the fabric and cut the paper bag to make the kind of parachute I mentioned before.

When people go sky divining, they use a specific kind of parachute because the design is supposed to slow the fall and give them a chance to make a safe landing.

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By using uniform motion, the high up the slope will it strike is 730.62 m.

We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

θ = 70⁰

vi = 200 m/s

x = 300 m

Find the initial velocity in x and y axis

vx = vi cosθ = 68.40 m/s

vy = vi sinθ = 187.94 m/s

Find the time taken to reach 300 m

vx = x / t

68.4 = 300 / t

t = 4.39 second

Find the time taken to reach maximum height

vt = vo + a . t

0 = vy - g . t

vy = gt

187.94 = 9.8 . t

t = 19.18 second

The motion of projectile is raising to maximum height, hence

s = vo . t + 1/2 . a . t²

h = vy . t - 1/2 . g . t²

h = 187.94 . 4.39 - 1/2 . 9.8 . 4.39²

h = 730.62 m

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The average speed with which the vehicle travels is equal to 56 Km/hr.

Velocity is measured as a vector quantity. There is a magnitude to it as well as a direction. The magnitude of velocity is measured by speed. The S.I. unit for this is the meter per second. Additionally, there are other units like km/h and km/s. Its dimensional equation is [LT-1].

The average speed of any vehicle is calculated over a given range of time. It is the total distance traveled by the vehicle in the given interval of time divided by the given time interval. It is a scaler quantity.

Average speed= Total Distance/ Time Taken

Given in the question

Distance = 140 km

Time of leaving Leeds = 8.00 am

Time of arriving Newcastle = 10.30 am

Time Taken = Time of arriving Newcastle - Time of leaving Leeds

                    = 10.30 - 8.00

                    =  2 hours and 30 minutes

So, the time taken is = 2.5 hr

Put in the values, we get

Average speed= Total Distance/ Time Taken

Average speed= 140/ 2.5 Km/Hr

Average speed= 56 Km/Hr

So, the average speed with which the vehicle travels is equal to 56 Km/hr.

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The magnitude of the acceleration of the block at this instant is 1.11m/s².

Given here the dimension of the block 1×2×3m, so the volume = l×b×h =6m3 and density = 600kg/m³

Mass of the block can be calculated as, m= volume × density = 600×6=3600kg.

Now, we calculate magnitude of force which is given by,

∑Force = F buoyant – ∑F drag- ∑F gravity

Force = 6×104 -2×104 – 3600× 9.8 =3600 ×a

On calculating this, we get

a= 1.11m/s².

Thus, the magnitude of acceleration is found to be 1.11m/s².

Buoyant force, is an upward force applied by a fluid against the weight of an object that is partially or completely submerged. The weight of the fluid on top causes pressure in a fluid column to rise with depth. If the buoyant force acting on an object is greater than the gravitational force then object will float, if gravitational force is greater than buoyant force then object will sink or drown.

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The mass of the object is obtained as 130 g.

The triple beam balance is the kind of balance that could be used to measure the mass of a substance. There are so many kinds of balance that could be used in science and these include;

1) beam balance

2) Spring balance
3) unequal arm balance

We read the mass of the object by looking at all the points that we have set on the triple beam balance to achieve the balance point. In the case of the substances that we have seen in the image of the question, the mass of the object is obtained as 130 g.

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After conversion into cartesian coordinates, we can write the position vectors as -

a) → r = 12.4 m , θ = 170°    ↔     - 12.21 i + 2.15 j

b) → r = 4 cm , θ = 50°   ↔    2.57 i + 3.06 j

c) → r = 20 inches , θ = 210°   ↔    - 17.32 i - 10 j

Cartesian coordinates are two-dimensional coordinates which are used to represent a point in X-Y plane. They are, in general, written in the form (x, y),  such that x is the horizontal distance of point from origin and y is the vertical distance of point from origin.

Given are the position vectors in polar coordinates of three points in X-Y coordinate system.

It is important to remember the following relations, in order to transform from polar coordinates (r, θ) into cartesian coordinates (x, y) -

x = r cosθ

y = r sinθ

a) → r = 12.4 m , θ = 170°

x = 12.4 x cos (170°) = 12.4 x -0.98480775301 = -12 .21

y = 12.4 x sin (170°) = 12.4 x 0.17364817766 = 2.15

In cartesian form → ( -12.21 i + 2.15 j )

b) → r = 4 cm , θ = 50°

x = 4 x cos (50°) = 4 x 0.64278760968 = 2.57

y = 4 x sin (170°) = 4 x 0.76604444311 = 3.06

In cartesian form → ( 2.57 i + 3.06 j )

c) → r = 20 inches , θ = 210°

x = 20 x cos (210°) = 20 x -0.86602540378 = -17.32

y = 20 x sin (210°) = 20 x -0.5= -10

In cartesian form → ( -17.32 i - 10 j )

Therefore, in two - Dimensional cartesian system, we can write the position vectors as -

a) → r = 12.4 m , θ = 170°    ↔     - 12.21 i + 2.15 j

b) → r = 4 cm , θ = 50°   ↔    2.57 i + 3.06 j

c) → r = 20 inches , θ = 210°   ↔    - 17.32 i - 10 j

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Since the cabinet must be mounted in a wet location, it must be mounted so there is at least 1/4 of airspace between the cabinet and the wall.

The area of the atmosphere that is under the authority of a nation above its territory, including its territorial waters, or, more broadly, any particular three-dimensional area of the atmosphere

It is not the same as aerospace, the umbrella term for the Earth's atmosphere and the proximity of outer space.

Wherever it is deemed necessary for air traffic control to exercise any sort of direct executive oversight over aircraft operating there, that area of the sky is known as controlled airspace.

A range of areas and zones, including those where flying operations are either completely prohibited or subject to restrictions, may be included in the further division of airspace.

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a)You throw a stone horizontally at a speed of 5.0 m/s from the top of a cliff that is 78.4 m high.

from above statement we got

height = 78.4 m

since the ball is thrown, so its vertical velocity would be zero

u = 0

taking g = 9.8m/s^2

now, using the equation of motion

h = ut + gt^2/2

now putting all the values in it

we got ,

78.4 = 9.8 * t^2/ 2

by solving we got,

t = 4 sec

b) now, since along the horizontal , no force acting and accelaration is zero so

R = ut , R is RANGE

R = 5 * 4

range =  20 m

c)  vertical components of the stone’s velocity just before it hits the ground = v sin θ =

horizontal   components of the stone’s velocity  just before it hits the ground = v cos θ

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In a day, an electrical resistance heater uses 10 kW-h of electricity. In the same day, the heater delivers 9 kW-h of heat to the house in which it is located.

A measurement of an object's resistance to the flow of electrical current is called electrical resistance. Electrical conductance, which gauges how easily an electric current moves, is its reciprocal quantity. Mechanical friction and electrical resistance conceptually have some similarities. Electrical resistance is measured in ohms (), the SI unit of electrical resistance, whereas electrical conductance is measured in siemens (S), also known as the mho (), the SI unit of electrical conductance.

An object's resistance is significantly influenced by the material it is constructed of. Electrical insulators like rubber typically have very high resistance and low conductance, whereas electrical conductors like metals typically have very low resistance and high conductance. Resistivity or conductivity are used to measure this relationship.

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Taking into account the definition of Avogadro's Number, 5.029×10²⁴ atoms of zinc are in 8.35 moles.

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

Then you can apply the following rule of three: If 1 mole of zinc contains 6.023×10²³ atoms, 8.35 moles of zinc contains how many atoms?

amount of atoms of zinc= (6.023×10²³ atoms× 8.35 moles)÷ 1 mole

amount of atoms of zinc= 5.029×10²⁴ atoms

Finally, 5.029×10²⁴ atoms of zinc are in 8.35 moles.

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The required electric field in the equipment is  35.77 * [tex]10^{17}[/tex] N/C.

We know that,

E = F / q

where,

E = Electric field

F = Electric force

q = Charge of electron

Given that,

F = 10e - 14 N = 13.18 N

No. of electrons = 23

q = 23 * 1.602 * [tex]10^{-19}[/tex] = 36.846 * [tex]10^{-19}[/tex] C

E = 13.18 / 36.846 * [tex]10^{-19}[/tex] = 35.77 * [tex]10^{17}[/tex] N / C

Protein electrophoresis is a test used to measure specific proteins in blood. The separation of proteins is based on their electric charge.

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By using uniform motion, the high up the slope will it strike is 730.62 m.

We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

θ = 70⁰

vi = 200 m/s

x = 300 m

Find the initial velocity in x and y axis

vx = vi cosθ = 68.40 m/s

vy = vi sinθ = 187.94 m/s

Find the time taken to reach 300 m

vx = x / t

68.4 = 300 / t

t = 4.39 second

Find the time taken to reach maximum height

vt = vo + a . t

0 = vy - g . t

vy = gt

187.94 = 9.8 . t

t = 19.18 second

The motion of projectile is raising to maximum height, hence

s = vo . t + 1/2 . a . t²

h = vy . t - 1/2 . g . t²

h = 187.94 . 4.39 - 1/2 . 9.8 . 4.39²

h = 730.62 m

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The resistivity of the materials must be constructed  in ratio A₂ = 2A.

The resistance of a wire can be defined as

R = ρL/A

Where,

ρ is Resistivity

L is Length of the conductor

A is Area of cross section of the conductor.

R₁/R₂ = (L₁/L₂) × (A₂/A₁)  ----> rearranging it for A

A₂ = (R₁/R₂) × (L₂/L₁) × A₁  

A₂ = (R/R) × (2L/L) × A  

A₂ = 2A

Therefore, cross section area of another conductor must be 2A.

The strength with which a substance resists electric current is known as electrical resistivity, which is a fundamental attribute of materials. A substance that permits electric current to flow easily has a low resistance. The Greek letter is often used to symbolize resistivity. The ohm-meter is the SI unit used to measure electrical resistivity.

A substance's ability to resist the flow of current, or electrons, can be characterized as a physical attribute. A specific substance with specific dimensions is distinguished by its physical property of resistivity.

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The 5.00 grams of oxygen gas (O₂) is the limiting reagent and the mass of aluminum oxide formed is 10.6 g.

The limiting reagent is the reactant that is completely used up in a reaction, and thus determines when the reaction stop.

3O₂ + 4Al  → 2Al₂O₃

combining ratio of the elements;

O = 3

AL = 4

In the reaction above, 5.0 g of oxygen will be completely used, since it has the smaller combining ratio.

3O₂  ---------------> 2Al₂O₃

3(16 x 2) ------> 2(27 x 2   + 16 x 3)

96 ------------------>  204

5 -------------------> ?

= (5 x 204)/96

= 10.6 g

Thus, the 5.00 grams of oxygen gas (O₂) is the limiting reagent and the mass of aluminum oxide formed is 10.6 g.

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They have a lower-than-normal magnifying power. is the correct answer.

Whatever your objective, a binocular tripod enables you to focus and stay there regardless of the wind or other environmental circumstances. You can see various regions simultaneously by using a tripod to hold several lenses in focus at once. Work your way down from the top of your head to get the appropriate tripod height. About four to five inches separate your eyes from the top of your head. The tripod head is roughly 4 to 4.5 inches high, and the telescopic eyepiece is about 4 inches above the bottom of the mount plate.

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Im confused on your questions, however they both need each other to work :D

Answer:

Photosynthesis and cellular respiration are processes by which plants and animals use to create energy from food.

Photosynthesis is exclusive to plants only though. It starts with sunlight which goes through the Electron Transport Chains (ETC's) and then through a cycle known as the Calvin-Benson cycle to create glucose.

Cellular respiration (cell resp) takes the glucose made in photosynthesis (or in the case of humans, from our food) and takes it through the Krebs cycle (sometimes referred to as the Citric Acid cycle) to create Adenosine Triphosphate (ATP) which is used to give us energy.

Hope that helps.

The major problem in a least developed country according to me is probably the low per capita income.

The problems that a less developed country faces are:

A lot of these countries have poor infrastructure for other sectors than primary sector ( Eg. Agriculture, fishing etc. ). This results in exploitation of natural resources with less per capita income ( Amount of money earned per person in a region ). This leads to crippling debts, not just as a person, but as a whole nation.

Therefore, the major problem in a least developed country is probably the low per capita income.

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The disadvantages of refractive telescopes include chromatic aberration and longer size.

This was the telescope developed by Newton in 1668.It is the simplest type of telescope which has a tube with lenses on both ends. The light enters through the lens on the farther end of telescope. The light is refracted to a point near the lens on the near end. It is then then further magnified when seen through the lens on the eyepiece.

Even though it was more reliable, it was really heavy and had a larger aperture and longer body. Since high quality lenses were costly to make, cheaper lenses were used mostly. So there was chromatic aberration.

Therefore, the disadvantages of refractive telescopes include chromatic aberration and longer size.

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You have to double the period as well in order to keep it unchanged.

Speed is calculated as follows: speed = distance * time. Knowing the units for distance and time is necessary to calculate the units for speed.

The units will be in metres per second (m/s) in this example since the distance is measured in metres (m) and the time is measured in seconds (s).

The formula for speed is as straightforward as dividing a distance by a time.

To calculate speed, divide the distance travelled (say, 3 metres) by the passing time (say, 3 seconds) (one metre per second).

So, the rate at which an object’s position changes in any direction can be defined as speed.

The speed formula is as follows: [Speed = Distance]

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The negatively charged electric plate is avoided in favor of the positively charged electric plate by the cathode ray. Thomson was able to estimate the mass-to-charge ratio of the particles by measuring the degree to which the ray was refracted by a magnetic field.

What property of the electron did Thomson measure?

The negatively charged electric plate is avoided in favor of the positively charged electric plate by the cathode ray. Thomson was able to estimate the mass-to-charge ratio of the particles by measuring the degree to which the ray was refracted by a magnetic field.

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Answer: Initial velocity is independent of the slope of the graph; that is, the acceleration. An object thrown downward still accelerates after release at the same rate as an object that is dropped.

Explanation: hope this helps

No.

A stone has the SAME acceleration whether you throw it down, throw it up, throw it sideways, or just drop it.

YOU decide the stone's initial velocity, but it always has the same acceleration after it leaves your hand.

Answer:

450

Explanation:

I think answer is 450.

The equilibrium temperature is required and to find whether the temperature change can be measured by a thermometer is required. The temperature is 310 K.

A physical measure that describes how hot a substance or radiation is is called temperature.

There are three different types of temperature scales: those, like the SI scale, that are defined in terms of the average translational kinetic energy per freely moving microscopic particle, like an atom, molecule, or electron, in a body; those that only rely on strictly macroscopic properties and thermodynamic principles, like Kelvin's original definition; and those that are defined by practical empirical properties of particulates rather than by theoretical principles.

With a thermometer, temperature is measured. It is calibrated in a number of temperature scales that historically defined themselves using different reference points and thermometric substances. The Celsius scale, originally known as "centigrade," is the most popular scale.

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The pressure when 32 newtons of force is applied to an area of 12.8 m² is 2.5 Pascals.

The force applied per unit area is defined as pressure.. Its S.I. unit is Pascal. 1 Pascal is equal to one Newton of force applied over an area of one meter squared. Its dimensional formula is [[tex]ML^{-1}[/tex][tex]T^{-2}[/tex]].

Pressure is directly proportional to the force applied and inversely proportional to the area over which the force is applied. And it follows the Pascal law.

Pressure = Force/Area

Given in the Question

Force = 32 Newton

Area = 12.8 m²

Put in the values, we get

Pressure = 32/12.8

Pressure = 2.5 Pascals

Therefore, the pressure when 32 newtons of force is applied to an area of 12.8 m² is 2.5 Pascals.

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Answer:

60 m/hStep-by-step

explanation:S = d/t

S= 360/60

S= 60